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Individual Calculations April 2008 |
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| Annurudha, G C Total change: 55.35 | |   |
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| Sri Lanka National B Chess Championships 2007 | Colombo | SRI | 2007-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2022 | 2167 | 7.00 | 8 | 1.57 | 15 | 23.55 | |
|  Hapuarachchi, H.l.m | | | 1909 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | |  Priyankara, Chamil.y | | | 1967 | SRI | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Kavinda, Akhila | | | 1995 | SRI | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Rajapaksha, Rmcm | | | 2148 | SRI | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Siriwardena, D.i.s | | | 1981 | SRI | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Dulan, Edirisinghe | | | 2197 | SRI | 1.00 | 1 | 0.54 | 15 | 8.10 | | | , Wijesuriya.g.l | | | 2164 | SRI | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Kottahachchy, K.o.v | | | 1817 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Sri Lanka National A Chess Championships 2007 | Colombo | SRI | 2007-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 2167 | 10.00 | 13 | 1.08 | 15 | 16.20 | |
| | Nishendra, Herath | | | 1980 | SRI | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Kuruppu, Danuke | | | 2094 | SRI | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Amarakoon, Naditha Thilanga | | | 1817 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Telge, Peiris Gayan Madushanka | | | 1999 | SRI | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Russell, M K A | | | 2187 | SRI | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Ketalawala, J.k.c. | | | 1817 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Kottahachchy, K O V | | | 1817 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Edirisinghe, Dulan | | | 2197 | SRI | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Rajapaksha, Rmcm | | | 2108 | SRI | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Wijesurija, G Laxman | | | 2105 | SRI | 0.50 | 1 | -0.09 | 15 | -1.35 | | | De, Silwa N Rashin | | | 1969 | SRI | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Dissanayake, Rs | | | 2038 | SRI | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Kurukulasuriya, Prasanna | | | 2052 | SRI | 1.00 | 1 | 0.34 | 15 | 5.10 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Asian Team Chess Championship 2007 | Vizag, A.P. | IND | 2008-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2465 | 2167 | 1.00 | 6 | 0.06 | 15 | 0.90 | |
| | Dzhumaev, Marat | g | | 2517 | UZB | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Gopal, G N | g | | 2517 | IND | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Nasri, Amin | | | 2348 | IRI | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Prathamesh, Sunil Mokal | m | | 2371 | IND | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Nguyen, Anh Dung | g | | 2517 | VIE | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Zhao, Jun | g | | 2517 | CHN | 0.50 | 1 | 0.39 | 15 | 5.85 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Colombo International Chess Festival | Colombo | SRI | 2008-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2165 | 2167 | 3.50 | 5 | 0.98 | 15 | 14.70 | |
| | Hettiarachchi, A.u. | | | 2030 | SRI | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Mallawarachchi, T S | | | 2229 | SRI | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Reddy, S. Tejaswini | | | 1967 | IND | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Girinath, P.d.s. | m | | 2430 | IND | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Weerawardane, R | | | 2171 | SRI | 1.00 | 1 | 0.51 | 15 | 7.65 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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